willacaliforniavotehave nationwide affects >>jeff:californiavoterswill decide tuesday if foodmakers must label all products that are made with genetically modified ingredients. it's estimated that up to 75% of all processed foods sold in your local grocery store contain gmos. but as john blackstone reports, the labeling debate has been served up with plenty of controversy. >> hmmmm. >> reporter: susan lang is very picky about what she feeds her kids even at snacktime. >> more cheese and vegetables. >> reporter: i have seen in my life how important a healthy diet is for my kids. >> reporter: lang supports california's proposition 37 which calls for labeling foods containing genetically modified ingredients. or gmos. >> the research hasn't been done about the long-term effects. these are brand-new foods. >> reporter: in the u.s. more than 93% of the soy crop and 88% of corn is genetically engineered. offered to withstand chemical weed killer and corn to repel insects, pesticide is engineered directly into the crenels. 61 countries have gmo labeling laws but the u.s. food and drug admi
will a california vote have nationwide affects >> jeff: california voters will decide tuesday if foodmakers must label all products that are made with genetically modified ingredients. it's estimated that up to 75% of all processed foods sold in your local grocery store contain gmos. but as john blackstone reports, the labeling debate has been served up with plenty of controversy. >> hmmmm. >> reporter: susan lang is very picky about what she feeds her kids even at snacktime....